This character is a Other Letter and is mainly used in the Katakana script.
The glyph is not a composition. Its East Asian Width is wide. In bidirectional text it is written from left to right. When changing direction it is not mirrored. This katakana joins with other adjacent katakana to form a word. U+30CB offers a line break opportunity at its position, except in some numeric contexts. The glyph can be confused with one other glyph.
The Wikipedia has the following information about this codepoint:
に, in hiragana, or ニ in katakana, is one of the Japanese kana, which each represent one mora. The hiragana is written in three strokes, while the katakana in two. Both represent /ni/ although for phonological reasons, the actual pronunciation is [ɲi].
Notably, the katakana (ニ) is functionally identical to the kanji for two (二), pronounced the same way, and written similarly.
に is used as a particle, with a similar function to the English "to", "in", "at", or "by":
Representations
System
Representation (click value to copy)
Nº
12491
UTF-8
E3 83 8B
UTF-16
30 CB
UTF-32
00 00 30 CB
URL-Quoted
%E3%83%8B
HTML hex reference
ニ
Wrong windows-1252 Mojibake
ニ
Encoding: BIG5 (hex bytes)
C7 63
Encoding: BIG5HKSCS (hex bytes)
C7 C7
Encoding: CP932 (hex bytes)
83 6A
Encoding: CP949 (hex bytes)
AB CB
Encoding: CP950 (hex bytes)
C7 63
Encoding: EUC_JP (hex bytes)
A5 CB
Encoding: EUC_JIS_2004 (hex bytes)
A5 CB
Encoding: EUC_JISX0213 (hex bytes)
A5 CB
Encoding: EUC_KR (hex bytes)
AB CB
Encoding: GB2312 (hex bytes)
A5 CB
Encoding: GBK (hex bytes)
A5 CB
Encoding: GB18030 (hex bytes)
A5 CB
Encoding: HZ (hex bytes)
7E 7B 25 4B 7E 7D
Encoding: ISO2022_JP (hex bytes)
1B 24 42 25 4B 1B 28 42
Encoding: ISO2022_JP_1 (hex bytes)
1B 24 42 25 4B 1B 28 42
Encoding: ISO2022_JP_2 (hex bytes)
1B 24 42 25 4B 1B 28 42
Encoding: ISO2022_JP_2004 (hex bytes)
1B 24 42 25 4B 1B 28 42
Encoding: ISO2022_JP_3 (hex bytes)
1B 24 42 25 4B 1B 28 42
Encoding: ISO2022_JP_EXT (hex bytes)
1B 24 42 25 4B 1B 28 42
Encoding: ISO2022_KR (hex bytes)
1B 24 29 43 0E 2B 4B 0F
Encoding: JOHAB (hex bytes)
DE 5B
Encoding: SHIFT_JIS (hex bytes)
83 6A
Encoding: SHIFT_JIS_2004 (hex bytes)
83 6A
Encoding: SHIFT_JISX0213 (hex bytes)
83 6A
Adobe Glyph List
nikatakana
digraph
Ni
RFC 5137
\u'30CB'
Bash and Zsh inside echo -e
\u30CB
C and C++
\u30CB
C#
\u30CB
CSS
\0030CB
Excel
=UNICHAR(12491)
Go
\u30CB
JavaScript
\u30CB
Modern JavaScript since ES6
\u{30cb}
JSON
\u30CB
Java
\u30CB
Lua
\u{30CB}
Matlab
char(12491)
Perl
"\x{30CB}"
PHP
\u{30cb}
PostgreSQL
U&'\30CB'
PowerShell
`u{30CB}
Python
\u30CB
Ruby
\u{30cb}
Rust
\u{30cb}
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